代码检查gps可用？

public static boolean areProvidersEnabled(Context context) { 
    ContentResolver cr = context.getContentResolver(); 
    String providersAllowed = Settings.Secure.getString(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED); 
    return providersAllowed != null && providersAllowed.length() > 0; 
} 

 

如果没有设置 那你可以提醒用户设置打开

Intent intent = new Intent(Settings.ACTION_SECURITY_SETTINGS); 
startActivity(intent);